TELIS-Meeting 4.12.2007 H. Oelhaf 1

MIPAS-TELIS Measurement Plan for TER2008

• Logistical Constraints• Science• MIPAS-B flight 15 as an xample• Obs plan

TELIS-Meeting 4.12.2007 H. Oelhaf 2

Flight and Measurement Plan

Ingredients

• Predicted trajectory (direction, time of the day)• Predicted flight duration• Envisat overpasses• Predicted clouds and convective activity• Predicted float level(s)

• Science objectives

TELIS-Meeting 4.12.2007 H. Oelhaf 3

Review of TELIS+MIPAS-B scientific objectives

• Closure of chemical families (NOy, Cly, HOx, Bry) still missing(at least above the ER2 cruising altitude), nota bene: complementarity and consistency checks

• Scientific issues associated to the tropical transition layer (TTL) are getting more and more important

TELIS-Meeting 4.12.2007 H. Oelhaf 4

What we miss…… on a chemical family by family basis

nitrogen

chlorine

bromine

hydrogen

Scientific Objectives of TELIS+MIPAS

TELIS-Meeting 4.12.2007 H. Oelhaf 5

What TELIS could contribute (Synergies)

• Closure of chemical families and understanding of family coupling

• NOy: NO3• ClOy: HCl, ClO, HOCl, Cl2O2• BrOy: BrO, BrONO2, HBr (?), BrCl, HOBr, …• HOx: HO, HO2

• UTLS: CO, PAN (?), acetone (?), HCHO (?), short-lived source gases

• Diurnal variation of radicals: NO, NO2, HO, HO2, BrO, ClO, …

• Non-LTE issues and intrusion of mesospheric air: NO, CO, ..

• Consistency checks: HNO3, H2O, ClO, others (?)

• Spectroscopy issues: spectroscopic parameters of species measured by both instruments in different bands

TELIS-Meeting 4.12.2007 H. Oelhaf 6

What TELIS could contribute (Synergies (cont.))

• UTLS region (what can TELIS provide in terms of altitude coverage and accuracy??)

• Qualification of TELIS and satellite validation (direct & indirect)

• Utilisation of synergy of ENVISAT (and other satellite) observations and coordinated field measurements

• TTL: Water isotopes as complement or for cross-check (CH3D ?)

What else will/would be a nice complement:

UV-Vis Mini-DOAS (K. Pfeilsticker, Uni. HD)

An instrument to measure the actinic flux in the UV and visible spectral region (simpe instrument by Frank Hase flew as piggy back).

TELIS-Meeting 4.12.2007 H. Oelhaf 7

Measurement planning – MIPAS-B_F15 as an example

Objectives• TTL science• Diurnal variation• NOy in Tropics• Convective outflow• Radiative fluxes from below• Envisat validation• …

TELIS-Meeting 4.12.2007 H. Oelhaf 8

TELIS-Meeting 4.12.2007 H. Oelhaf 9

Limb sequences look up tables

TELIS-Meeting 4.12.2007 H. Oelhaf 10

Flight measurement plan - ascent

TELIS-Meeting 4.12.2007 H. Oelhaf 11

Flight measurement plan - ceiling

TELIS-Meeting 4.12.2007 H. Oelhaf 12

MIPAS-B2 F15 (13-14 Juni 2005): Erster Tropenflug

0

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22:00 0:00 2:00 4:00 6:00 8:00 10:00 12:00 14:00 16:00 18:00

UTCA

ltit

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e (m

)

height

TELIS-Meeting 4.12.2007 H. Oelhaf 13

‚Typischer‘ Flugablauf (Flug15)Flug 15

-10

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21:00 22:00 23:00 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00

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Elevation

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Hoehe [m*100]

seq0

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Cloud-detect

Nadir

Cloud-detect

TIME

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vatio

n (°

)A

zim

uth

(°)

TELIS-Meeting 4.12.2007 H. Oelhaf 14

0 50 100 150 200 250 300 3501.6

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20 km 18.5 km 17 km 15.5 km 14 km 12.5 km 11 km 9 km 7 km 5 km

Det

ecto

r DC

[V]

Azimuth angle [°]

Cloud survey from azimuth scanning

TELIS-Meeting 4.12.2007 H. Oelhaf 15

MIPAS-B: Flight #15,14 June 2005, Teresina

(BR)

-52 -50 -48 -46 -44 -42 -40 -38 -36 -34 -32 -30-20

-18

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-52 -50 -48 -46 -44 -42 -40 -38 -36 -34 -32 -30

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Teresina, 14 June 2005, GOES-12-Sat. 7:00 UT MIPAS-B

Latit

ude

(°N

)

Longitude (°E)

4.0006.0008.00010.0012.0014.0016.0018.0020.0022.0024.0026.0028.0030.0032.0034.0036.0038.00

01

Alt. (km)

5:35 UT

4:53 UT

-85 -80 -75 -70 -65 -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0-40

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30-85 -80 -75 -70 -65 -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0

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ECMWF 050614 00 UT30 hPa Temp (K)(~24 km)

209.0210.0211.0212.0213.0214.0215.0216.0217.0218.0219.0220.0221.0222.0

Teresina, 14 June 2005 MIPAS-B

La

titu

de

(°N

)

Longitude (°E)

6:37 UT7:50 UT7:15 UT

TELIS-Meeting 4.12.2007 H. Oelhaf 16

Clouds and lightning

NO2 (ppbv)

TELIS-Meeting 4.12.2007 H. Oelhaf 17

MIPAS-TELIS OBS Plan

• Channel selection/optimization (prioritized molecules)• Harmonizing sampling strategies

(channels/pointing/vertical sampling)• Calibration strategies• Envisat validation• Specific TELIS objectives?• Nadir measurements ?

TELIS-Meeting 4.12.2007 H. Oelhaf 18

TELIS-Meeting 4.12.2007 H. Oelhaf 19

TELIS-Meeting 4.12.2007 H. Oelhaf 20

Chlorine family

TELIS-Meeting 4.12.2007 H. Oelhaf 21

NOy-family: NO, NO2, HNO3, HNO4, N2O5, ClONO2, HCN, PAN

Cly-family: ClO, HOCl, HCl, ClONO2

HOx: OH, HO2, H2O2

Bromine: BrOShort-lived source gases and precursors: OCS, NH3, acetone, PAN,

NMHCs (C2H6, C2H2, ..)

MIPAS-B TELIS MIPAS+TELIS

Weitere Komplettierung der Gondel mit UV-vis

Spektrometer (mini-DOAS) (DFG

Antrag)

TELIS